Retort hydrocarbon-burner.



No. 702,638. 4 Patented lune |71, |902. A. n. DUNCAN & w. H. wAFEn.

RETORT `HYVDRYGARBIIN BURNER;

(Application led July 1, 1901.)

2 Sheets-Sheet l.

I (No Model.)

Patgntwlune n, |902.- A. n. DUNCAN & w. H. wAFEn.

RETURT HYDRCARBON BURNER.

' l (Appumion med July 1, 1901.) (No Modal.) 2 Shasta-Sheet 2.

Ill. l

y fyi/:ze @wr4 A UNITED lSIA'I??13s PATENT @FC E .e g v ALFREDv D. DUNCAN, CF GALvEsToN, TEXAS, AND` WILLIAM H. WAFER, or

- CHICAGO, ILLINOIS. Y

,RI-:TORT HYDROCARBON-BURNER.

SPECIFICATION forming part @freezers Patent No. 702,638, amerique@ 17, v1902.

.Application filed July 1, 1901.

YTo a/ZZ 'whom if may concern:

f Beit known that we, ALFRED D. DUNCAN, residing at Galveston, in -the county of Galves'tonand State of Texas, and WILLIAM H.

5 WAFER, residing at Chicago, in the county of Cook and State of Illinois, citizens of the Y United States, have invented certain new and useful Improvements-in Retort Hydrocarbon- Burners, of which vthe following isa-specilication.

This invention relates to improvements in Y kretort-burners, to be used for any suitable and desired purpose and for any kind of oils ;A andI it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be l hereinafter more fully7 set forth and specifically claimed.

The objects of our invention are to provide a direct-combustion retort-burner for any and'all of the various kinds of hydrocarbon oils; to furnish a burner of the above-named character which shall be of such4 construction that the combustion will be perfect .and complete and the oil andair maybe supplied .thereto under a uniform pressure of high or low degree. f z y Another' object is to provide a burner which can be constructed of parts which are mainly 3o carried in stock by merchants, thus enabling them to be readily assembled without the necessity of having special machinery for their manufacture or skilled workmen to put them together. l I

Other objects and advantages of the invention will appear in thesubjoined description.

In order to enable othersslrilled-in the art to which our invention pertains to make and use the same', We will now proceed to describe it, referring to the accompanying drawings, in which- Figure l isa fragmental perspective view, partly in section and partly in elevation, yof a boiler and its furnace, showing our imyproved burner applied thereto and in operation. Fig. 2 is a vertical sectional view through the retort and bu`rner,showing a por' tion of the oil and' air pipes..` Fig. 3 is abottom plan view of the burner-valve. Fig. 4 5o is a sectional view thereof, taken on line 4 4,

Fig. 3. Fig. 5is a perspective view, partly sentira. 66,691. (No model.)

l in section and partly in elevation, of a portion of a furnace with .our burner applied thereto and illustrating a modification inlits construction; and Fig. 6 Ais an enlarged de- 55 tail View.l y

Similarletters refer to like `parts through` out the different views of the drawings.

A represents thefurnaceof a'boiler B, which furnace may be of the ordinary or any 6o preferred construction; but in the presenti-n-- stance we have shown the fire-box thereof as having a floor A', inclined froxnthe bridgewallet towardthe front plate d' of the furnace.V Secured tothe outer surface of the 65 front plate a/ is a box-like casing C, which isy .provided in its bottom with a"dam per 'open ing b and in its front 4portion vwith another damper-opening b', the purposes of which the casing C is located the retort D, which is preferably formed of iire-clay so shaped as` to provide a spherical chamber d, vfrom [which a suitablechannel or opening d leads through box. "The'retort Disshown in` the present instance as-being 'made `of two pieces cl2 and dhof fire-clay, each having substantially a hemispherical Acavity or hollow which when said pieces are united together V*form* the 8o spherical chamber d or retortproper. f l-Iow ever, we do not desire to be` limited 'to any number of` piecesor any specific material in the construction ofthev retort, asfwe may make itof other material, thanffiie-clay and 85 of more than two pieces or of pieces having different-shaped cavities. Y. 'i

Hingedto the outer surfacefof ,the` front plate a.' ofthe furnace is a piece c, to the outer edge o f which is hinged at itsupper end a 9o pieces', which is provided at its lower portionwith a hook c? to engage `an eye c? on the front portion of the casing C. The pieces c and c', together with the top `of the casing C,

said pieces may-be raised to the positionsh'own by dotted linesin Fig. 2'ofthe drawings, so that the retort may be repairedorwavnew one readily placed irr position.

with an opening d4, through which passes a tube E, the upper end of which isopen and will be kpresently explained. vOn the -topof 7o` l the front plate a of the furnace to the iire- 75*V form a casing or'protectionforthe retort, and

The lower portion of the retort is formed roo dared, as at e. (See Fig. 2 of the drawings.) The tube E is located in the box or casing C and has its lower end extending through the bottom thereof and secured in place b y means of a collar e', which surrounds it. Passing through the tube E from its bottom to its top is a pipe E, which has on its upper outersurface a sleeve es, provided with spiral ribs e9, and at its upper end within the chamber (Z of the retort and in the Haring portion e of the tube E a cup-shaped and daring valve-seat e2 for the reception and operation of the burnervalve e3 and escape of the hydrocarbon. The valve @Sis concavo-convex and has on its lower or concave surface a series of curved ribs or corrugations e* to give to the oil a circling movement as it is forced through the pipe E and burner into the retort-chamber. The valve e3 carries a stem c5, which is preferably in the form of a cross in cross-section, and has a pin e, extending into vertical slots eT in the upper portion of the pipe Ei, thus permitting the valve to be raised by pressure and lowered by gravity.

Communicating with the lower portion of the pipe E is another pipe E2, which communicates at its other end with the lower portion of a tank or reservoir whichv contains oil under pressure and may be located at any suitable or desired distance from the furnace and burner. The lower portion of the pipe E is provided with a drip-cup E3 and a valve g, which valve is employed to allow oil to pass from the pipe E into the cup E3, where it may be ignited in setting the burner in operation. Communicating at one of its ends with the upper portion of the tank or reservoir F is a pipe H, which passes through the casing C and communicates at its other end with the tube or pipe E, as is clearly shown in Figs. l and 2 of the drawings. The pipe I-I is provided with a valve 71, to regulate the flow of air therethrough. Communicating.,r at one of its ends with the upper portion of the tank Fand above the oil-line therein is a pipe IfI, which communicates at its other end with an air-compressor H2 of the ordinary or any desired construction, and which compressor may be located at any desired point.

In Fig. 5 of the drawings we have illustrated a modified form of our invention, which consists in em ployiug, besides the parts above described, a coil or loop of pipe G, which extends up through the casing C and into the fire-box and communicates with the lower portion of the pipe E and is for the purpose `of superheating the oil as it passes therethrough. In this figure is shown a casing in which may be located a series of our burners, all or any of which may be equipped with the loop or coil .Gr of pipe.

The operation is as follows: The tank or reservoir F is partially lled with oil and air under pressure admitted thereto, when by opening the valves 7L and 72, in the pipes H and E2, respectively, oil and air will be caused to iiow into and through the tube E and pipe E under uniform pressure, which may be regulated as desired. In starting the burner the valve g is opened, so as to allow oil to escape from the pipe E' into the drip-cup E3, Where it may be ignited, when by opening the damper ZJ the blaze from the burning oilwill ascend into the chamber C and ignite the oilor gas therefrom iu the retort-chamber, after which the valve g may be closed and the oil in the drip-cup extinguished. The damperb in the casing C may be opened for the purpose of observation and also to furnish a draft. As the oil es capes from the pipe E under pressure it will raise the valve e3 and by reason of the curved grooves or corrugations e4 on the lower surface thereof will give to the oil a rotary or whirling movement, in which operation the escaping air or steam from the tube E by reason of the spiral ribs on the pipe E will be caused to Whirl in the opposite direction and to thoroughly mingle therewith. Instead of using compressed air we may employ` steam and admit it to the tank F under pressure, when the same operation will be carried out. By employing the loop or coil G it is apparent that the oil will be heated therein and vaporized, thus causing it to ijlowvfrom the burner on the `upper end of the pipe E in the form of gas, where it will be ignited and discharged from the retort through the openingcl therein into the lire-box of the furnace.

From the foregoing it will be understood that the valve-seat e2 and valve e3 comprise the burner and principal generator, for it is evident that as the mixture of oil, air, or steam escapes therefrom and is ignited the said parts will become heated and will generate gas or vapor.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. The combination with a retort having a discharge-opening and another opening in its lower portion, of a tube extendinginto the retort and having communication with a supply of steam or air, a pipe extending through said tube into the retort and communicating with a supply of oil, a valve seated on the end of said pipe in the retort andhaving on its lower surface a series of curved corrugations, and means to control the low of oil, air orsteam, substantially as described.

2. The combination with a retort having a discharge-opening and another opening in its lower portion, of a tube extending at one of its ends through said lower opening into the retort and having a communication with a supply of steam or air under pressure,a pipe extending through said tube into the retort and communicating with a supply of oil under pressure, a flaring valve-seat on the end of the pipe in the retort, a gravity-valve located in said seat and having on its lower surface a series of curved corrugations, substantially as described.

3. The combination with a furnace, of a casing secured to the front plate thereof and 1ioo IOS

IIO

havinga'dampered opening in its bottom and iront, a retort on said casing and having Va discharge-opening communicating with the ltire-bolt and another opening communicating with the casing, a`tube extending through vthe casing and into the retort and connected to a supplyofsteam or air, a pipe extending through said tube into the retort and con-v nected to a supply of oil, a drip-cup on the lower portion of said pipe, a'valve seated on the end of said pipe in the retort, means to control the flow of oil, and'means to control containing oil and air, or oil'and Steam under pressure, substantially as described.

` 5. The combination with a retort having-aj discharge-openingfand another opening in its .i a

'lower portion, of a tube extending at one of itslends through said lower opening intothe retort and having a communication With'a supply of steam or air under pressure, a pipe having on its upper outer surface spiral ribs and extending through said tube intothe retortandl communicating Witha supply of oil under pressure, a laringvvalve-seat on; the end of the pipe in the retort,'a gravity-Valve located in said seat/and having'on'its -lower surface 'a series of 'corrugatio'ns curved in the opposite directionfrom the curve of the ribs onthepipe, substantially as described. l ALFREDl D. DUNCAN. WILLIAM H. WAFER Witnesses: i

OHAS. C; TILLMAN, A. GUsfrArsoN. 

